Go back to 640-792 - Supporting Cisco TelePresence System Devices v1.0 (TPTECH)

Question :-

What is the first step to reset a 7900 series IP phone to the factory default?
Press the service button.
Disconnect the Ethernet cable from the back of the phone.
Press the # key.
Unplug the Ethernet cable from the 10/100 SW port and plug it back in.

Want to practice for 640-792 - Supporting Cisco TelePresence System Devices v1.0 (TPTECH) ? Click here.